I am building up and ls/vtec i already have the block and a GSR head, and i was wondering of it is worth it to get the head ported and polished because i can get it done at a machine shop for $200 because my cousin works there.

Port and polish GSR head
Skunk2 Stage 2 Cams
Spoon Cam gears
Skunk2 Intake Manifold
Planing on getting and intake, pistons and rods, and headers

On an estimate how much hp will I get out of that????????